Theory of fractionalized topological phases (A04)

分段拓扑相理论（A04）

• 批准号: 316524818
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/316524818?language=en
• 关键词: Theory; fractionalized; topological; phases; A04

Project A04 focuses on topological phases that exhibit fractionalization -- the emergence of quasiparticles with microscopically forbidden quantum numbers, such as charge-neutral spin-1/2 `spinons' in quantum magnets. It combines a variety of analytical and numerical techniques to study gapless quantum spin liquids and correlated insulators in graphene flat bands. The goals are to classify the possible ground states for given microscopic symmetries and to develop a coherent understanding of the conditions under which such exotic quantum phases may arise.

A04项目的重点是表现出分数化的拓扑相——出现具有微观禁止量子数的准粒子，例如量子磁体中的电荷中性自旋1/2“自旋子”。它结合了各种分析和数值技术来研究石墨烯平带中的无间隙量子自旋液体和相关绝缘体。目标是对给定微观对称性的可能基态进行分类，并对这种奇异量子相可能出现的条件有一个连贯的理解。